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<div class="title">test_ondisk_ivf.cpp</div>  </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/**</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Copyright (c) 2015-present, Facebook, Inc.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> * This source code is licensed under the BSD+Patents license found in the</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * LICENSE file in the root directory of this source tree.</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;</div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#include &lt;cstdio&gt;</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#include &lt;cstdlib&gt;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;</div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#include &lt;omp.h&gt;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;</div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &lt;unordered_map&gt;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &lt;pthread.h&gt;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;</div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &lt;gtest/gtest.h&gt;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;</div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#include &lt;faiss/OnDiskInvertedLists.h&gt;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &lt;faiss/IndexIVFFlat.h&gt;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#include &lt;faiss/IndexFlat.h&gt;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#include &lt;faiss/utils.h&gt;</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#include &lt;faiss/index_io.h&gt;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="keyword">struct </span><a class="code" href="structTempfilename.html">Tempfilename</a> {</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;    <span class="keyword">static</span> pthread_mutex_t mutex;</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;    std::string filename;</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;    <a class="code" href="structTempfilename.html">Tempfilename</a> (<span class="keyword">const</span> <span class="keywordtype">char</span> *prefix = <span class="keyword">nullptr</span>) {</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;        pthread_mutex_lock (&amp;mutex);</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;        filename = tempnam (<span class="keyword">nullptr</span>, prefix);</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;        pthread_mutex_unlock (&amp;mutex);</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;    }</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;    ~<a class="code" href="structTempfilename.html">Tempfilename</a> () {</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;        <span class="keywordflow">if</span> (access (filename.c_str(), F_OK)) {</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;            unlink (filename.c_str());</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;        }</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;    }</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">char</span> *c_str() {</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;        <span class="keywordflow">return</span> filename.c_str();</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;    }</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;};</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;pthread_mutex_t Tempfilename::mutex = PTHREAD_MUTEX_INITIALIZER;</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;TEST(ONDISK, make_invlists) {</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;    <span class="keywordtype">int</span> nlist = 100;</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    <span class="keywordtype">int</span> code_size = 32;</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    <span class="keywordtype">int</span> nadd = 1000000;</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    std::unordered_map&lt;int, int&gt; listnos;</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    <a class="code" href="structTempfilename.html">Tempfilename</a> filename;</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    <a class="code" href="structfaiss_1_1OnDiskInvertedLists.html">faiss::OnDiskInvertedLists</a> ivf (</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;                nlist, code_size,</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;                filename.c_str());</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    {</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;        std::vector&lt;uint8_t&gt; code(32);</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;        <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; nadd; i++) {</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;            <span class="keywordtype">double</span> d = drand48();</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;            <span class="keywordtype">int</span> list_no = int(nlist * d * d); <span class="comment">// skewed distribution</span></div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;            <span class="keywordtype">int</span> * ar = (<span class="keywordtype">int</span>*)code.data();</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;            ar[0] = i;</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;            ar[1] = list_no;</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;            ivf.add_entry (list_no, i, code.data());</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;            listnos[i] = list_no;</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;        }</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    }</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    <span class="keywordtype">int</span> ntot = 0;</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; nlist; i++) {</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;        <span class="keywordtype">int</span> size = ivf.list_size(i);</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">long</span> *ids = ivf.get_ids (i);</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;        <span class="keyword">const</span> uint8_t *codes = ivf.get_codes (i);</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;        <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j &lt; size; j++) {</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;            <span class="keywordtype">long</span> <span class="keywordtype">id</span> = ids[j];</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> * ar = (<span class="keyword">const</span> <span class="keywordtype">int</span>*)&amp;codes[code_size * j];</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;            EXPECT_EQ (ar[0], <span class="keywordtype">id</span>);</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;            EXPECT_EQ (ar[1], i);</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;            EXPECT_EQ (listnos[<span class="keywordtype">id</span>], i);</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;            ntot ++;</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;        }</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    }</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    EXPECT_EQ (ntot, nadd);</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;};</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;TEST(ONDISK, test_add) {</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;    <span class="keywordtype">int</span> d = 8;</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    <span class="keywordtype">int</span> nlist = 30, nq = 200, nb = 1500, k = 10;</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    <a class="code" href="structfaiss_1_1IndexFlatL2.html">faiss::IndexFlatL2</a> quantizer(d);</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    {</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;        std::vector&lt;float&gt; x(d * nlist);</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;        faiss::float_rand(x.data(), d * nlist, 12345);</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;        quantizer.add(nlist, x.data());</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;    }</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    std::vector&lt;float&gt; xb(d * nb);</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;    faiss::float_rand(xb.data(), d * nb, 23456);</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;    <a class="code" href="structfaiss_1_1IndexIVFFlat.html">faiss::IndexIVFFlat</a> index(&amp;quantizer, d, nlist);</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;    index.add(nb, xb.data());</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;    std::vector&lt;float&gt; xq(d * nb);</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;    faiss::float_rand(xq.data(), d * nq, 34567);</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;    std::vector&lt;float&gt; ref_D (nq * k);</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;    std::vector&lt;faiss::Index::idx_t&gt; ref_I (nq * k);</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;    index.search (nq, xq.data(), k,</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;                  ref_D.data(), ref_I.data());</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    <a class="code" href="structTempfilename.html">Tempfilename</a> filename, filename2;</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    <span class="comment">// test add + search</span></div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;    {</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;        <a class="code" href="structfaiss_1_1IndexIVFFlat.html">faiss::IndexIVFFlat</a> index2(&amp;quantizer, d, nlist);</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;        <a class="code" href="structfaiss_1_1OnDiskInvertedLists.html">faiss::OnDiskInvertedLists</a> ivf (</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;                index.nlist, index.code_size,</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;                filename.c_str());</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;        index2.replace_invlists(&amp;ivf);</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;        index2.add(nb, xb.data());</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;        std::vector&lt;float&gt; new_D (nq * k);</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;        std::vector&lt;faiss::Index::idx_t&gt; new_I (nq * k);</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;        index2.search (nq, xq.data(), k,</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;                       new_D.data(), new_I.data());</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;        EXPECT_EQ (ref_D, new_D);</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;        EXPECT_EQ (ref_I, new_I);</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;        write_index(&amp;index2, filename2.c_str());</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    }</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    <span class="comment">// test io</span></div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;    {</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;        <a class="code" href="structfaiss_1_1Index.html">faiss::Index</a> *index3 = faiss::read_index(filename2.c_str());</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;        std::vector&lt;float&gt; new_D (nq * k);</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;        std::vector&lt;faiss::Index::idx_t&gt; new_I (nq * k);</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;        index3-&gt;<a class="code" href="structfaiss_1_1Index.html#aced51b1ebc33c47ab3ae15ea906559a7">search</a> (nq, xq.data(), k,</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;                        new_D.data(), new_I.data());</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;        EXPECT_EQ (ref_D, new_D);</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;        EXPECT_EQ (ref_I, new_I);</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;        <span class="keyword">delete</span> index3;</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;    }</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;};</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;<span class="comment">// WARN this thest will run multithreaded only in opt mode</span></div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;TEST(ONDISK, make_invlists_threaded) {</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;    <span class="keywordtype">int</span> nlist = 100;</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;    <span class="keywordtype">int</span> code_size = 32;</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;    <span class="keywordtype">int</span> nadd = 1000000;</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;    <span class="keywordtype">int</span> nt = 20;</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;    <a class="code" href="structTempfilename.html">Tempfilename</a> filename;</div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;    <a class="code" href="structfaiss_1_1OnDiskInvertedLists.html">faiss::OnDiskInvertedLists</a> ivf (</div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;                nlist, code_size,</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;                filename.c_str());</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;    std::vector&lt;int&gt; list_nos (nadd);</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; nadd; i++) {</div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;        <span class="keywordtype">double</span> d = drand48();</div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;        list_nos[i] = int(nlist * d * d); <span class="comment">// skewed distribution</span></div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;    }</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;</div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;<span class="preprocessor">#pragma omp parallel</span></div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;<span class="preprocessor"></span>    {</div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;        std::vector&lt;uint8_t&gt; code(32);</div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;<span class="preprocessor">#pragma omp for</span></div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;<span class="preprocessor"></span>        <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; nadd; i++) {</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;            <span class="keywordtype">int</span> list_no = list_nos[i];</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;            <span class="keywordtype">int</span> * ar = (<span class="keywordtype">int</span>*)code.data();</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;            ar[0] = i;</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;            ar[1] = list_no;</div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;            ivf.add_entry (list_no, i, code.data());</div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;        }</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;    }</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;</div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;    <span class="keywordtype">int</span> ntot = 0;</div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; nlist; i++) {</div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;        <span class="keywordtype">int</span> size = ivf.list_size(i);</div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">long</span> *ids = ivf.get_ids (i);</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;        <span class="keyword">const</span> uint8_t *codes = ivf.get_codes (i);</div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;        <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j &lt; size; j++) {</div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;            <span class="keywordtype">long</span> <span class="keywordtype">id</span> = ids[j];</div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> * ar = (<span class="keyword">const</span> <span class="keywordtype">int</span>*)&amp;codes[code_size * j];</div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;            EXPECT_EQ (ar[0], <span class="keywordtype">id</span>);</div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;            EXPECT_EQ (ar[1], i);</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;            EXPECT_EQ (list_nos[<span class="keywordtype">id</span>], i);</div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;            ntot ++;</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;        }</div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;    }</div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;    EXPECT_EQ (ntot, nadd);</div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;</div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;};</div>
<div class="ttc" id="structfaiss_1_1IndexFlatL2_html"><div class="ttname"><a href="structfaiss_1_1IndexFlatL2.html">faiss::IndexFlatL2</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8h_source.html#l00079">IndexFlat.h:79</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexIVFFlat_html"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlat.html">faiss::IndexIVFFlat</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8h_source.html#l00025">IndexIVFFlat.h:25</a></div></div>
<div class="ttc" id="structTempfilename_html"><div class="ttname"><a href="structTempfilename.html">Tempfilename</a></div><div class="ttdef"><b>Definition:</b> <a href="test__merge_8cpp_source.html#l00063">test_merge.cpp:63</a></div></div>
<div class="ttc" id="structfaiss_1_1Index_html_aced51b1ebc33c47ab3ae15ea906559a7"><div class="ttname"><a href="structfaiss_1_1Index.html#aced51b1ebc33c47ab3ae15ea906559a7">faiss::Index::search</a></div><div class="ttdeci">virtual void search(idx_t n, const float *x, idx_t k, float *distances, idx_t *labels) const =0</div></div>
<div class="ttc" id="structfaiss_1_1OnDiskInvertedLists_html"><div class="ttname"><a href="structfaiss_1_1OnDiskInvertedLists.html">faiss::OnDiskInvertedLists</a></div><div class="ttdef"><b>Definition:</b> <a href="OnDiskInvertedLists_8h_source.html#l00052">OnDiskInvertedLists.h:52</a></div></div>
<div class="ttc" id="structfaiss_1_1Index_html"><div class="ttname"><a href="structfaiss_1_1Index.html">faiss::Index</a></div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00060">Index.h:60</a></div></div>
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